As US debt spirals to $22 trillion, former Fed chair Janet Yellen is suddenly concerned

America‚Äôs gross national debt skyrocketed by $11.2 trillion in less than 11 years, according to statistics. It means the government has been adding an average of more than a trillion dollars a year to the national debt for more than a decade. Total public debt outstanding has risen by $1.36 trillion, or 6.6 percent, since […]